PVS-Studio warning V571 for QT

QString QUtf32::convertToUnicode(....)
{
  ...
  if (endian == DetectEndianness) {
    if (endian == DetectEndianness) {
  ...
}

Just an odd double check.

This suspicious code was found in QT project by PVS-Studio static code analyzer.
Warning message is:
V571 Recurring check. The 'if (endian == DetectEndianness)' condition was already verified in line 470. bootstrap qutfcodec.cpp 471

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/